Vent Loop, Side Vent for HoseØ:13,19,25,32mm

Product Information

Vented loops are essential for preventing backflow and siphoning in marine plumbing systems. They allow air to enter lines like bilge pump discharge or toilet flush hoses, ensuring safe and reliable operation Built from corrosion-resistant materials, they’re a must-have for onboard safety Install them above the waterline for maximum effectiveness.

Used in engine exhaust system to prevent siphoning action back into the engine while stopped. You should install a vented loop 40 cm above the water line whenever the cooling water injection point is less than 15cm above the water line. Plastic construction means no corrosion. Hose sizes: 13mm (1/2″), 19mm (3/4″), 25mm (1″) or 32mm (1-1/4″).

The air vents can be used in:

• the cooling water pipe of a water injected exhaust system
• the inhale pipe drain if the toilet is positioned below the waterline